An integrated nail quality detection device
By introducing adjustable support feet and limit block structures into the pull-out tester, combined with a horizontal bubble and adjustment mechanism, the problem of eccentric pull-out caused by uneven base surface was solved, thus achieving accuracy and reliability of integrated nail detection data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-28
AI Technical Summary
Existing pull-out instruments, due to the fixed length of their support legs, are difficult to adapt to uneven base surfaces, causing the device to tilt, the pulling force to be out of axis from the nail body axis, resulting in eccentric pull-out and distorted test data.
The structure employs adjustable support feet and limit blocks, combined with a level bubble and adjustment mechanism, to ensure that the pull-out instrument body is horizontal and aligned with its axis before testing. The height and position of the support feet can be adjusted through the adjustment and moving mechanisms to ensure that the pull-out instrument is coaxial with the integrated nail.
It effectively prevents eccentric pull-out, ensures that the direction of the pull force is coaxial with the nail body axis, improves the accuracy and reliability of the test data, and avoids the distortion of test data caused by the tilt of the device.
Smart Images
Figure CN122468495A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of integrated nail production technology, specifically, it relates to an integrated nail quality inspection device. Background Technology
[0002] Integrated nails, also known as gun nails, are fastening nails that combine a nail, gunpowder, and cartridge case into one piece. They are fired using a special nail gun and can be driven directly into hard substrates such as concrete, brick walls, and steel plates. They are quick to install and do not require drilling. They are mainly used for quick fixing in decoration, plumbing, ceiling installation, equipment installation, and other scenarios.
[0003] After production, integrated nails require pull-out testing to ensure their reliability in actual use. Current technology typically uses a pull-out apparatus, which clamps and axially pulls the integrated nail into the substrate to determine its maximum tensile strength. However, existing pull-out apparatuses generally have the following shortcomings: their support leg length is usually fixed and difficult to adjust. When the test surface is uneven, tilted, or locally irregular, the fixed-length support leg makes it difficult to keep the pull-out apparatus body stably attached to the surface, causing the entire device to tilt. When the device tilts, the direction of the pulling force applied by the pull-out apparatus is difficult to keep aligned with the axis of the integrated nail, resulting in eccentric pull-out. This eccentric pull-out causes the integrated nail to bear both axial tensile force and lateral bending moment during testing, easily leading to premature breakage, slippage, or clamping failure. Ultimately, this results in severely distorted test data, making it difficult to accurately assess the true quality of the integrated nail. Summary of the Invention
[0004] The purpose of this invention is to provide an integrated nail quality testing device, which solves the technical problem in the existing pull-out tester that, due to the fixed length of the support leg, is prone to tilting on uneven base surfaces, causing the tensile force to be out of axis with the nail body axis and resulting in eccentric pull-out, thus leading to distorted test data.
[0005] At least one embodiment of the present invention provides a device for testing the quality of an integrated nail, including a pull-out instrument body, and further comprising: a support ring, a support frame, a fixing frame, a limiting block, and a horizontal bubble. Two of the limiting blocks are made of rubber, and each limiting block has a groove on its opposite side. The support ring is fixedly connected to the bottom of the pull-out instrument body. Multiple support frames are provided, each fixedly connected to the support ring. Each support frame has a supporting foot installed via an adjustment mechanism, which adjusts the support height of the supporting foot. Two fixing frames are provided, each fixedly connected to the support ring. Two limiting blocks are provided, located at the bottom of the two fixing frames via a moving mechanism. The moving mechanism drives the two limiting blocks to move relative to each other, clamping the integrated nail and restricting the pull-out instrument body to a direction coaxial with the integrated nail. The horizontal bubble is installed at the top of the pull-out instrument body.
[0006] To adjust the support angle of the support foot on the body of the pull-out apparatus, the adjustment mechanism includes: an adjustment tube, a slide rod, a drive screw, a drive assembly, and a limiting assembly. The adjustment tube is fixedly connected to the bottom end of the support frame, the slide rod is slidably connected to the bottom end of the adjustment tube, the support foot is rotatably mounted on the bottom end of the slide rod via a rotating assembly, the drive screw is fixedly connected to the top end of the slide rod and is located inside the adjustment tube, the drive assembly is located inside the adjustment tube and is used to drive the drive screw and slide rod to move within the adjustment tube, and the limiting assembly is located on the adjustment tube and is used to limit and fix the adjusted slide rod. The drive assembly includes: a fixed plate, a rotating block, a first bevel gear, and a second bevel gear. The fixed plate is fixedly connected to the adjustment tube, the rotating block is rotatably connected to the fixed plate, and the fixed plate has a rotation opening. The rotating block is rotatably connected to the rotating opening. A screw hole is provided on the rotating block, and the driving screw is threaded into the screw hole. The first bevel gear is fixedly connected to the bottom end of the rotating block, and the second bevel gear is rotatably connected to the adjusting tube. The second bevel gear meshes with the first bevel gear. The limiting assembly includes a limiting platform and a limiting screw. Torsion wheels are fixedly connected to both the second bevel gear and the limiting screw. The limiting platform is fixedly connected to one side of the adjusting tube, and a screw hole is provided on the limiting platform. The limiting screw is threaded into the screw hole, and one end of the limiting screw contacts the sliding rod. The rotating assembly includes a rotating ball and a stabilizing block. The rotating ball is fixedly connected to the bottom end of the sliding rod, and the stabilizing block is fixedly connected to the top end of the supporting foot. A rotating groove is provided on the stabilizing block, and the rotating ball is rotatably connected within the rotating groove.
[0007] To drive the two limiting blocks to move relative to each other and clamp the integral nail, thereby axially aligning the puller body with the integral nail, the moving mechanism includes: a slider, a clamping frame, and a moving component. Two sliders are provided, each with a groove on one of the two fixed frames. The two sliders are slidably connected within the two grooves, and the bottom ends of the two sliders are fixedly connected to the clamping frames. The two limiting blocks are fixedly connected to opposite ends of the two clamping frames. The moving component is mounted on the two sliders and is used to drive the two sliders to move relative to each other. The moving component includes: a drive frame, a bidirectional screw, and a hexagonal block. The top ends of the two sliders are fixedly connected to the drive frame, and both drive frames have threaded holes. The two ends of the bidirectional screw are threaded into the two threaded holes, and both ends of the bidirectional screw are fixedly connected to the hexagonal block.
[0008] This invention provides an integrated nail quality testing device. By incorporating multiple independent support feet driven by an adjustment mechanism, combined with a horizontal bubble level mounted on the top of the pull-out tester, the operator can adjust the support height of each foot according to the flatness of the base surface until the horizontal bubble indicates that the pull-out tester is horizontal. This process effectively compensates for unevenness of the base surface, ensuring the pull-out tester is in the correct spatial orientation before testing. Simultaneously, by incorporating two limiting blocks driven by a moving mechanism, the nail shank of the integrated nail can be clamped from both sides before testing. The clamping action of the limiting blocks forces the axis of the pull-out tester to align with the axis of the integrated nail. With the pull-out tester horizontal and the axis aligned, eccentric pulling is effectively prevented, ensuring that the direction of the pulling force is coaxial with the height of the nail axis, thereby significantly improving the accuracy and reliability of the pull-out test data. Attached Figure Description
[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0010] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a structural schematic diagram from another angle provided in an embodiment of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the regulating tube provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the moving mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the driving component provided in an embodiment of the present invention; Figure 6 Provided by the embodiments of the present invention Figure 3 A magnified structural diagram of point A in the middle; Figure 7 Provided by the embodiments of the present invention Figure 3 A magnified structural diagram of point B in the middle.
[0011] In the diagram: 1. Pull-out instrument body; 2. Support ring; 3. Support frame; 4. Support foot; 5. Fixing frame; 6. Limiting block; 7. Horizontal bubble; 8. Adjusting tube; 9. Slide rod; 10. Drive screw; 11. Fixing plate; 12. Rotating block; 13. First bevel gear; 14. Second bevel gear; 15. Limiting platform; 16. Limiting screw; 17. Rotating ball; 18. Stabilizing block; 19. Torsion wheel; 20. Slider; 21. Clamping frame; 22. Drive frame; 23. Bidirectional screw; 24. Hexagonal block. Detailed Implementation The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.
[0012] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.
[0013] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0014] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0015] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."
[0016] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.
[0017] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.
[0018] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0019] like Figures 1-7 As shown, this invention illustrates an integrated nail quality testing device according to an embodiment of the present invention, including a pull-out instrument body 1, and further comprising: a support ring 2, a support frame 3, a fixing frame 5, a limiting block 6, and a horizontal bubble 7. Both limiting blocks 6 are made of rubber, and each limiting block 6 has a groove on its opposite side. The support ring 2 is fixedly connected to the bottom of the pull-out instrument body 1. Multiple support frames 3 are provided, each fixedly connected to the support ring 2. Each support frame 3 has a supporting foot 4 installed via an adjustment mechanism. The adjustment mechanism is used to adjust the support height of the supporting foot 4. Two fixing frames 5 are provided, each fixedly connected to the support ring 2. Two limiting blocks 6 are provided, and the two limiting blocks 6 are located at the bottom of the two fixing frames 5 via a moving mechanism. The moving mechanism is used to drive the two limiting blocks 6 to move relative to each other, clamping the integrated nail and restricting the pull-out instrument body 1 in a direction coaxial with the integrated nail. The horizontal bubble 7 is installed at the top of the pull-out instrument body 1.
[0020] The moving mechanism includes: sliders 20, clamping frames 21, and moving components. There are two sliders 20, and each of the two fixed frames 5 has a sliding groove. The two sliders 20 are slidably connected in the two sliding grooves. The bottom ends of the two sliders 20 are fixedly connected to the clamping frames 21. Two limit blocks 6 are fixedly connected to the opposite ends of the two clamping frames 21. The moving components are set on the two sliders 20 and are used to drive the two sliders 20 to move relative to each other. The moving components include: a drive frame 22, a bidirectional screw 23, and a hexagonal block 24. The top ends of the two sliders 20 are fixedly connected to the drive frame 22. Each drive frame 22 has a screw hole. The two ends of the bidirectional screw 23 are threaded into the two screw holes. The two ends of the bidirectional screw 23 are fixedly connected to the hexagonal block 24.
[0021] The operator twists the hexagonal block 24 to drive the bidirectional screw 23 to rotate. When the bidirectional screw 23 rotates, it drives the two drive frames 22 to move relative to each other, thereby driving the two sliders 20 to move relative to each other, and then driving the limit block 6 installed on the clamping frame 21 to move relative to each other, thereby clamping the integrated nail and aligning the puller body 1 axially with the integrated nail.
[0022] During this process, the two limiting blocks 6 are symmetrically arranged and move synchronously, which ensures that the axis of the integrated nail is forcibly aligned with the axis of the pull-out instrument body 1. This effectively solves the problem of eccentric pull-out caused by device placement deviation, providing a precise centering basis for subsequent pull-out tests. At the same time, the limiting blocks 6 are made of rubber and have grooves on their opposite surfaces, which increases the contact area and friction with the integrated nail, and plays a buffering role during clamping, avoiding damage to the nail surface and ensuring the stability and safety of clamping.
[0023] The adjustment mechanism includes: an adjustment tube 8, a slide rod 9, a drive screw 10, a drive assembly, and a limiting assembly. The adjustment tube 8 is fixedly connected to the bottom end of the support frame 3. The slide rod 9 is slidably connected to the bottom end of the adjustment tube 8. The support foot 4 is rotatably mounted on the bottom end of the slide rod 9 via a rotating assembly. The drive screw 10 is fixedly connected to the top end of the slide rod 9 and is located inside the adjustment tube 8. The drive assembly is located inside the adjustment tube 8 and is used to drive the drive screw 10 and the slide rod 9 to move within the adjustment tube 8. The limiting assembly is located on the adjustment tube 8 and is used to limit and fix the adjusted slide rod 9. The drive assembly includes: a fixed plate 11, a rotating block 12, a first bevel gear 13, and a second bevel gear 14. The fixed plate 11 is fixedly connected to the adjustment tube 8. The rotating block 12 is rotatably connected to the fixed plate 11. The fixed plate 11 has a rotating opening. The rotating block 12 is rotatably connected to the support frame 3. Inside the rotating port, a screw hole is provided on the rotating block 12, and the drive screw 10 is threadedly connected to the screw hole. The first bevel gear 13 is fixedly connected to the bottom end of the rotating block 12, and the second bevel gear 14 is rotatably connected to the adjusting tube 8. The second bevel gear 14 meshes with the first bevel gear 13. The limiting assembly includes: a limiting platform 15 and a limiting screw 16. Torsion wheels 19 are fixedly connected to both the second bevel gear 14 and the limiting screw 16. The limiting platform 15 is fixedly connected to one side of the adjusting tube 8. A screw hole is provided on the limiting platform 15, and the limiting screw 16 is threadedly connected to the screw hole. One end of the limiting screw 16 contacts the slide rod 9. The rotating assembly includes: a rotating ball 17 and a stabilizing block 18. The rotating ball 17 is fixedly connected to the bottom end of the slide rod 9, and the stabilizing block 18 is fixedly connected to the top end of the support foot 4. A rotating groove is provided on the stabilizing block 18, and the rotating ball 17 is rotatably connected to the rotating groove.
[0024] The operator rotates the torsion wheel 19 to drive the second bevel gear 14 to rotate. When the second bevel gear 14 rotates, it drives the first bevel gear 13 and the rotating block 12 to rotate. When the rotating block 12 rotates, it drives the drive screw 10 to rotate. Thus, the movement of the drive screw 10 drives the slide bar 9 to move, thereby driving the lifting and lowering adjustment of the support foot 4.
[0025] The adjustment mechanism combines bevel gear transmission with a lead screw and nut mechanism, which has the advantages of compact structure, high transmission efficiency and high adjustment accuracy, and can achieve fine adjustment of the height of the support foot 4.
[0026] During the adjustment process, the rotating ball 17 rotates adaptively within the rotating groove, allowing the support foot 4 to automatically adjust its contact posture according to the local tilt angle of the base surface, always maintaining surface contact with the base surface, thus avoiding instability caused by the support foot 4 being suspended or in point contact.
[0027] The operator simultaneously observes the horizontal bubble 7 and adjusts each of the multiple support feet 4 independently until the horizontal bubble 7 indicates that the body of the puller 1 has reached a horizontal state.
[0028] This distributed and independent adjustment method can effectively compensate for unevenness defects such as bumps and tilts on the base surface, ensuring that the pull-out instrument body 1 is in a precise horizontal position before testing.
[0029] After completing the centering operation of the limiting block 6 and the leveling operation of the support foot 4, the pull-out instrument body 1 achieves horizontality in spatial posture and axial alignment with the integral nail. At this point, the direction of the pulling force applied by the pull-out instrument body 1 coincides with the axial height of the integral nail. During the pulling process, the integral nail only bears axial tension and no longer bears lateral bending moments caused by device tilting or axial deviation, thus ensuring the authenticity and accuracy of the test data and effectively solving the data distortion problem caused by eccentric pulling in the background technology. Working principle: When a pull-out test is required on the integrated nail, the operator twists the hexagonal block 24 to drive the bidirectional screw 23 to rotate. The rotation of the bidirectional screw 23 causes the two drive frames 22 to move relative to each other, which in turn causes the two sliders 20 to move relative to each other. This, in turn, causes the limiting blocks 6 installed on the clamping frame 21 to move relative to each other, thus clamping the integrated nail and aligning the pull-out instrument body 1 axially with the integrated nail. This clamping process utilizes the principle of symmetrical clamping to forcibly adjust the axis of the pull-out instrument body 1 to coincide with the axis of the integrated nail, eliminating the initial alignment deviation caused by the operator's visual placement. The operator then rotates the torsion wheel 19 to drive the second bevel gear 14 to rotate. The rotation of the second bevel gear 14 drives the first bevel gear 13 and the rotating block 12 to rotate. The rotation of the rotating block 12 drives the drive... The screw 10 rotates, which in turn drives the slide bar 9 to move, thereby adjusting the height of the support foot 4. During the adjustment process, the rotating ball 17 rotates adaptively within the rotating groove, and the operator observes the level bubble 7 to adjust the level of the pull-out instrument body 1. This leveling process, through the independent adjustment of multiple support feet 4, can accurately compensate for local unevenness of the base surface, ensuring that the pull-out instrument body 1 maintains a stable horizontal posture throughout the test. With the pull-out instrument body 1 horizontal and its axis coinciding with the axis of the integrated nail, the pull-out instrument body 1 is started for the pull-out test. The pull-out force data measured at this time eliminates the interference of eccentric pull-out and can truly reflect the ultimate tensile strength of the integrated nail, significantly improving the reliability and consistency of the test results.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An integrated nail quality detection device comprising a puller body (1), characterized in that, Also includes: Support ring (2), which is fixedly connected to the bottom of the drawing instrument body (1); Support frame (3), multiple support frames (3) are provided, and multiple support frames (3) are fixedly connected to the support ring (2). Each support frame (3) is equipped with a support foot (4) through an adjustment mechanism. The adjustment mechanism is used to adjust the support height of the support foot (4). The fixing frame (5) is provided in two, and both fixing frames (5) are fixedly connected to the support ring (2); Limiting block (6), two limiting blocks (6) are provided. The two limiting blocks (6) are set at the bottom of the two fixed frames (5) through a moving mechanism. The moving mechanism is used to drive the two limiting blocks (6) to move relative to each other to clamp the integrated nail, which can limit the puller body (1) in the direction coaxial with the integrated nail. A horizontal bubble (7) is installed at the top of the puller body (1).
2. The integrated nail quality detection device of claim 1, wherein, The adjustment mechanism includes: Adjustment tube (8), which is fixedly connected to the bottom end of the support frame (3); The slide rod (9) is slidably connected to the bottom end of the adjusting tube (8), and the support foot (4) is rotatably set at the bottom end of the slide rod (9) through the rotating assembly; A drive screw (10) is fixedly connected to the top of the slide bar (9) and the drive screw (10) is located inside the regulating tube (8); A drive assembly is disposed inside the regulating tube (8) for driving the drive screw (10) and the slide bar (9) to move within the regulating tube (8); A limiting component is provided on the adjusting tube (8) for limiting and fixing the adjusted slide rod (9).
3. The integrated nail quality detection device of claim 2, wherein, The driving component includes: A fixing plate (11) is fixedly connected inside the regulating tube (8); Rotating block (12), the rotating block (12) is rotatably connected to the fixed plate (11), the rotating block (12) is provided with a screw hole, and the driving screw (10) is threaded into the screw hole; The first bevel gear (13) is fixedly connected to the bottom end of the rotating block (12); The second bevel gear (14) is rotatably connected inside the regulating tube (8) and meshes with the first bevel gear (13).
4. The integrated nail quality detection device of claim 3, wherein, The limiting component includes: A limiting platform (15) is fixedly connected to one side of the adjusting tube (8); The limiting screw (16) is provided with a screw hole on the limiting platform (15). The limiting screw (16) is threaded into the screw hole, and one end of the limiting screw (16) is in contact with the slide rod (9).
5. The integrated nail quality detection device of claim 4, wherein, The rotating assembly includes: Rotating ball (17), which is fixedly connected to the bottom end of the slide rod (9); A stabilizing block (18) is fixedly connected to the top of the support foot (4). A rotating groove is provided on the stabilizing block (18), and the rotating ball (17) is rotatably connected in the rotating groove.
6. The integrated nail quality detection device of claim 4, wherein, Torsion wheels (19) are fixedly connected to both the second bevel gear (14) and the limiting screw (16).
7. The integrated nail quality detection device of claim 1, wherein, The moving mechanism includes: Slider (20), two sliders (20) are provided, and each of the two fixing frames (5) is provided with a sliding groove. The two sliders (20) are slidably connected in the two sliding grooves respectively; The clamping frame (21) is fixedly connected to the bottom end of the two sliders (20), and the two limiting blocks (6) are fixedly connected to the opposite ends of the two clamping frames (21); A moving component is disposed on the two sliders (20) for driving the two sliders (20) to move relative to each other.
8. The integrated nail mass detection device of claim 7, wherein, The moving component includes: The drive frame (22) is fixedly connected to the top of both sliders (20). The bidirectional screw (23) has screw holes on both drive frames (22), and the two threads of the bidirectional screw (23) are respectively threaded into the two screw holes; The hexagonal block (24) is fixedly connected to both ends of the bidirectional screw (23).
9. The integrated nail quality detection device of claim 1, wherein, Both of the limiting blocks (6) are made of rubber, and the opposite side of the two limiting blocks (6) is provided with a groove.
10. The integrated nail quality detection device of claim 3, wherein, The fixed plate (11) has a rotating opening, and the rotating block (12) is rotatably connected to the rotating opening.